• Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag
  • Bio-Avail Mag

Bio-Avail Mag

60 capsules 30 day supply

A Highly Absorbable and Effective Form of Magnesium

Bio-Avail Mag

60 capsules 30 day supply

A Highly Absorbable and Effective Form of Magnesium

Restore optimal magnesium levels and experience its incredible benefits—with a lower risk of unpleasant GI side effects

  • Promote relaxation and experience deeper and more restorative sleep.

  • Maintain normal blood sugar and metabolic and cardiovascular function.

  • Soothe your digestive system and improve bowel regularity and gut health.

Delivers every
($0.63/per serving)

Subscriber Rewards… Tap to See More!

($0.70/per serving)

Free US Shipping on orders over $85

60-day Returns

Exclusive Subscription Perks

Order # Gift Value
2 FREE Storage Bottle $5-$7
4 FREE Adapt Naturals Frother $25.99
6 FREE Adapt Naturals Trucker Hat $29.99
8 Special Gift $75
Revitalize Your Diet

Boost magnesium intake (over 90% deficient)

Get the amount you need for optimal function and well-being.

RELAX YOUR BODY & MIND

Experience restful sleep and a sense of calm

Soothe your nervous system and buffer the effects of daily stress.

SUPPORT YOUR METABOLISM

Maintain normal blood sugar and metabolic health

Improve conversion of carbohydrates and fat into energy your body can use.

STRENGTHEN YOUR BONES

Support healthy bones as you age

Extend your healthspan and vitality with stronger and more resilient bones.

Real Stories of Health and Happiness

  • “I noticed a great improvement in my rest and the amount of time it takes me to fall asleep. I can feel my sleeping is a lot deeper than what it was before. I highly recommend!"

    —C.D., Verified

  • “The Bio-Avail Mag is a must have in my supplement regimen. I’ve been sleeping better as it helps relax my body and calm my mind.”

    —Nancy, Verified

  • “I'm delighted with this product! I feel that is helping my digestion and overall energy. I highly recommend it!”

    —Sasha, Verified

Signs You Need Bio-Avail Mag

Low energy or fatigue

Chronic stress or “fight or flight” response

Muscle spasms or weakness

Difficulty falling and/or staying asleep

Decreased bowel regularity/GI discomfort

Suboptimal bone health

What You'll Feel Using Bio-Avail Mag

  • Sustained energy throughout the day

  • Relaxed and smoothly toned muscles

  • Improved bowel regularity and GI health

  • A sense of calm and well-being

  • Deeper, more restorative sleep

  • Stronger and more resilient bones

60-Day Money Back Guarantee

60-Day Money Back Guarantee

We're confident you'll love our products, but if you're not completely satisfied, we offer a 60-day, 100% money-back guarantee on all purchases. Simply contact us for a full refund, no questions asked. Buy with confidence knowing you're covered by our guarantee.

The Adapt Naturals Standard

The Adapt Naturals Standard

In our increasingly toxic world, the last thing you want to worry about is a lot of artificial junk in your supplements. Adapt Naturals supplements are made with the cleanest possible ingredients, without gluten or GMOs. Our products are manufactured in a U.S. facility that meets the NSF’s rigorous GMP regulatory standards.

Third-Party Lab-Tested with Transparent Results

Third-Party Lab-Tested with Transparent Results

We conduct third-party testing on all our products to verify their purity, potency, and safety. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (COAs) and test results directly on our website. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.

See Test Results

Discover the Bio-Avail Mag Advantage

 
Competitors
Ingredients
Buffered chelate form
Non-buffered form
Absorbability
Maximally absorbable
Low absorption
Potency
Full strength
Dose too low
Clinical Background
15 years in-clinic
Not typically
Sustainability
Supports ecosystem health
Disregards soil health
Packaging
Glass/recyclable
Single-use plastics
Founder
Functional Medicine expert
Marketers
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Meet Chris Kresser, your
Trusted Health & Wellness Guide

Founder & Functional Medicine Clinician

  • Globally renowned expert with over 15 years of experience
  • Dedicated to helping people improve their health by addressing modern challenges and nutrient gaps

Author & Educator

  • Treated thousands of patients
  • Trained more than 2,000 healthcare professionals
  • Gained valuable insights into functional medicine and nutrition

Why Choose Bio-Avail Mag?

Our modern diets often fall short of providing the optimal amounts of essential nutrients our bodies need to function at their best. With Bio-Avail Mag, you can optimize magnesium intake and support your overall health and well-being—without the unpleasant GI side effects associated with inferior forms of magnesium.

Formulated to Replicate Optimal Ancestral Diets

Changes in dietary patterns, declining soil quality, and a growing toxic burden have made it increasingly difficult to obtain adequate nutrients from our daily food intake. Bio-Avail Mag is designed to address these challenges by providing a highly bioavailable form of magnesium that gets absorbed quickly and is easy for the body to use.

Harness Years of In-Clinic Experience and Ancestral Wisdom

Backed by Adapt Naturals' 15 years of in-clinic experience and dedicated to creating supplements that make a meaningful difference, Bio-Avail Mag combines cutting-edge research with insights from ancestral wisdom to bring you a premium-quality supplement.

Bio-Avail Mag

Unlock Your Optimal Health

Upgrade Your Wellness with Bio-Avail Multi—Magnesium, Upgraded

Get Healthier & Happier - Try Now

Good For You—And the Planet

You can’t have healthy humans without a healthy planet. That’s why Adapt Naturals is working toward zero plastic and landfill waste in our supply chain.

In the fall of 2023, we started transitioning our packaging to 100% compostable, stand-up pouches. They’re made from cellulose (wood pulp) and are free of PLA, BPA, PFAS, phthalates, and other harmful chemicals. They’re printed with non-toxic, compostable ink. The pouches are so clean and biodegradable that you can put them in your backyard or curbside compost bin! 

Our sustainable packaging initiative will prevent over 120,000 plastic bottles from ending up in a landfill or the oceans. Thank you for being part of the solution and helping Adapt Naturals protect the beauty of our natural environment!

Your Questions Answered

Bio-Avail Mag is best taken with food. We recommend taking the daily two-capsule serving with dinner to promote optimal sleep and relaxation and healthy elimination the following day.

Many magnesium supplements on the market contain magnesium oxide or magnesium citrate. These forms of magnesium are not as well-absorbed as the Buffered Magnesium Chelates that we use in Bio-Avail Mag, which bypass typical routes of absorption and are thus less likely to cause the unpleasant gastrointestinal effects associated with less bioavailable forms of magnesium.

Yes, all Adapt Naturals products, including Bio-Avail Mag, undergo rigorous third-party testing for purity and potency. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (CoAs) and test results on our website. This level of openness is almost unheard of in the supplement industry. It allows you to see exactly what’s in the product you’re putting into your body. Click here to view the most recent CoA and test results.

Customer Reviews

Based on 121 reviews
91%
(110)
4%
(5)
2%
(3)
1%
(1)
2%
(2)
M
Margaret Green
None Other

I’ve tried several different brands of magnesium and supplements over the years and nothing v works like Adapt Naturals. Maybe because it’s bio-available. I’m grateful!!

Hi Margaret, thank you for sharing this! Bio-Avail Mag uses a highly absorbable, buffered form of magnesium that’s easy on the stomach and effective at replenishing critical magnesium levels. We’re thrilled it’s become your go-to!

S
Shelley Hastreiter
Zero Issues

Love this product!

Hi Shelley,
Thanks for the love! Bio-Avail Mag was formulated to deliver highly absorbable magnesium with zero digestive drama. We’re so glad it’s working for you.

B
Brett Kroll
Magnesium Must

A staple supplement, this product works as advertised and is a daily must.

Hi Brett,

Thank you for your review! We’re so glad to hear Bio-Avail Mag has become a daily staple for you. Our goal is to make therapeutic dosing easier and more effective, so it’s great to know it’s working well in your routine. We appreciate you being a part of the Adapt Naturals community!

E
Erin
Excellent

I love that this magnesium comes in a dosage that makes it easy to take enough for my own needs. I was taking a different brand where I would have had to take 5 capsules to reach a therapeutic dosage. Bio-avail mag made it more affordable for me to take a therapeutic dosage and my nervous system is feeling calmer and im sleeping well. Highly recommend

Hi Erin,

Thank you for this thoughtful review. We designed Bio-Avail Mag with therapeutic flexibility in mind, and we’re so glad it’s helping support your sleep and nervous system health. It’s great to hear you're getting the benefits without needing to take multiple capsules.

Wishing you continued calm and restful nights!

M
Margarita Miller
Magnesium for sleep

The Bio-Avail Mag has come in handy for all the family before bed

Hi Margarita,

Love hearing that Bio-Avail Mag is becoming a family favorite! It’s wonderful to know it’s helping create a restful bedtime ritual for your household. Thanks for sharing!

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